Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Corrosion products of carbonation induced corrosion in existing reinforced concrete facades
Abstract Active corrosion in reinforced concrete structures is controlled by environmental conditions and material properties. These factors determine the corrosion rate and type of corrosion products which govern the total achieved service life. The type and critical amount of corrosion products were studied by electron microscopy and X-ray diffractometry on concrete and reinforcement samples from existing concrete facades on visually damaged locations. The corrosion products in outdoor environment exposed concrete facades are mostly hydroxides (Feroxyhite, Goethite and Lepidocrocite) with a volume ratio to Fe of approximately 3. The results can be used to calibrate calculation of the critical corrosion penetration of concrete facade panels.
Corrosion products of carbonation induced corrosion in existing reinforced concrete facades
Abstract Active corrosion in reinforced concrete structures is controlled by environmental conditions and material properties. These factors determine the corrosion rate and type of corrosion products which govern the total achieved service life. The type and critical amount of corrosion products were studied by electron microscopy and X-ray diffractometry on concrete and reinforcement samples from existing concrete facades on visually damaged locations. The corrosion products in outdoor environment exposed concrete facades are mostly hydroxides (Feroxyhite, Goethite and Lepidocrocite) with a volume ratio to Fe of approximately 3. The results can be used to calibrate calculation of the critical corrosion penetration of concrete facade panels.
Corrosion products of carbonation induced corrosion in existing reinforced concrete facades
Köliö, Arto (Autor:in) / Honkanen, Mari (Autor:in) / Lahdensivu, Jukka (Autor:in) / Vippola, Minnamari (Autor:in) / Pentti, Matti (Autor:in)
Cement and Concrete Research ; 78 ; 200-207
28.07.2015
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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